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Firn Air Isotope and Temperature Measurements from Siple Dome and South Pole

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Identification Information:

Dataset Identifier:

NSIDC-0098

Citation:

Citation Information:

Originator: J.P. Severinghaus, A. Grachev, and M. Battle
Publication Date: 20010101
Title: Firn Air Isotope and Temperature Measurements from Siple Dome and South Pole
Publication Information:
Publication Place: Boulder, Colorado USA
Publisher: NSIDC: National Snow and Ice Data Center
Online Linkage: http://nsidc.org/data/nsidc-0098.html
Online Linkage: http://dx.doi.org/10.7265/N51N7Z2P

Description:

Abstract:

This data set includes d15N, d18O/2, dO2/N2/4, d40Ar/4, d38/Ar/2, d84Kr/48, and d132Xe/96 values for air drawn from the top 15 to 50 m of firn at the South Pole (summer and winter 1998) and a site at Siple Dome (summers 1996 and 1998). Data also include related firn temperature measurements.

The objective of this research was to better understand thermal fractionation processes affecting records of atmospheric history from firn and ice core gases. Recent work (e.g., Severinghaus and Brook, 1999) has exploited trapped air in ice and deep firn as a record of past atmospheric composition and climate change. Interpretation of these paleoclimate archives is complicated by artifacts of thermal diffusion, a process in which heavier gases migrate down temperature gradients toward colder regions in the firn. Seasonal temperature change at the snow surface creates strong temperature gradients in the top few meters of the firn, which cause isotopic fractionation of firn gases. A specific goal of this research is to identify any long-term effects of seasonal temperature fluctuations on firn air isotopic anomalies.

Purpose: scientific research

Documentation:

User's Guide:

Citation Information:

Originator: J.P. Severinghaus, A. Grachev, and M. Battle
Publication Date: 20010101
Title: Firn Air Isotope and Temperature Measurements from Siple Dome and South Pole
Publication Information:
Publication Place: Boulder, Colorado USA
Publisher: NSIDC: National Snow and Ice Data Center
Online Linkage: http://nsidc.org/data/docs/agdc/nsidc0098_severinghaus/index.html

Time Period of Content:

Time Period Information:

Range of Dates/Times:

Beginning Date: Unknown
Ending Date: Unknown

Currentness Reference: publication date

Status:

Progress: Complete
Maintenance and Update Frequency: Unknown

Spatial Domain:

Bounding Coordinates:

 

West Bounding Coordinate: -148.767°
East Bounding Coordinate: -102°
North Bounding Coordinate: -81.667°
South Bounding Coordinate: -89.997°

Keywords:

Theme:

Theme Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Science Keywords
Theme Keyword: EARTH SCIENCE Cryosphere Glaciers/Ice Sheets Ice Sheets Firn Air Isotopes
Theme Keyword: EARTH SCIENCE Cryosphere Snow/Ice Snow/Ice Temperature Firn Temperature
Theme Keyword: EARTH SCIENCE Paleoclimate Ice Core Records Ice Core Air Bubbles Firn Air
Theme Keyword: EARTH SCIENCE Paleoclimate Ice Core Records Isotopes Firn Air Isotopes
Theme Keyword: EARTH SCIENCE Terrestrial Hydrosphere Glaciers/Ice Sheets Ice Sheets Firn Air Isotopes
Theme Keyword: EARTH SCIENCE Terrestrial Hydrosphere Snow/Ice Snow/Ice Temperature Firn Temperature

Theme:

Theme Keyword Thesaurus: None
Theme Keyword:

Theme:

Theme Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Instrument Keywords
Theme Keyword: FLASKS
Theme Keyword: MASS SPECTROMETERS
Theme Keyword: THERMISTORS

Theme:

Theme Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Platform Keywords
Theme Keyword: GROUND STATIONS
Theme Keyword: GROUND-BASED OBSERVATIONS

Theme:

Theme Keyword Thesaurus: None
Theme Keyword: Antarctica
Theme Keyword: Argon Isotopes
Theme Keyword: Atmospheric Gases
Theme Keyword: Boreholes
Theme Keyword: Firn Air Isotope Measurements
Theme Keyword: Firn Air Isotopes
Theme Keyword: Firn Isotopes
Theme Keyword: Firn Temperature Measurements
Theme Keyword: Gas Isotopes
Theme Keyword: Ice Core Gas Records
Theme Keyword: Isotopic Anomalies
Theme Keyword: Isotopic History
Theme Keyword: Krypton
Theme Keyword: mass spectrometers
Theme Keyword: Mass Spectrometry
Theme Keyword: Nitrogen Isotopes
Theme Keyword: NSIDC
Theme Keyword: NSIDC-0098
Theme Keyword: Oxygen Isotopes
Theme Keyword: Polar Firn Air
Theme Keyword: Seasonal Temperature Changes
Theme Keyword: Seasonal Temperature Gradients
Theme Keyword: Shallow Firn Air
Theme Keyword: Siple Dome
Theme Keyword: South Pole
Theme Keyword: Thermal Diffusion
Theme Keyword: Thermal Fractionation
Theme Keyword: Trapped Air Bubbles
Theme Keyword: Xenon

Place:

Place Keyword Thesaurus: NASA Global Change Master Directory (GCMD) Location Keywords
Place Keyword: Continent Antarctica Siple Dome

Access Constraints:

None

Use Constraints:

None

Point of Contact:

Contact Information:

Contact Person Primary:

Contact Person: NSIDC User Services
Contact Organization: National Snow and Ice Data Center

Contact Address:

Address Type: mailing
Address:
  • CIRES, 449 UCB
  • University of Colorado
City: Boulder
State or Province: CO
Postal Code: 80309-0449
Country: USA

Contact Voice Telephone: 1 303 492-6199 x
Contact Facsimile Telephone: 1 303 492-2468 x
Contact Electronic Mail Address: nsidc@nsidc.org

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Distribution Information:

Distributor:

Contact Information:

Contact Organization Primary:

Contact Organization: National Snow and Ice Data Center
Contact Person: NSIDC User Services

Contact Address:

Address Type: mailing
Address:
  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado
City: Boulder
State or Province: CO
Postal Code: 80309-0449
Country: USA

Contact Voice Telephone: 1 303 492-6199
Contact Facsimile Telephone: 1 303 492-2468
Contact Electronic Mail Address: nsidc@nsidc.org

Resource Description:

NSIDC-0098

Distribution Liability:

NSIDC cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NSIDC makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.

Standard Order Process:

Digital Form:

Digital Transfer Information:

Format Name: Microsoft Excel

Digital Transfer Option:

Online Option:

Computer Contact Information:

Network Address:

Network Resource Name: Click here.

Fees: None

Standard Order Process:

Digital Form:

Digital Transfer Information:

Format Name: ASCII Text (.txt)

Digital Transfer Option:

Online Option:

Computer Contact Information:

Network Address:

Network Resource Name: Click here.

Fees: None

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Metadata Reference Information:

Metadata Date:

20140313

Metadata Review Date:

20140313

Metadata Contact:

Contact Information:

Contact Person Primary:

Contact Person: NSIDC User Services
Contact Organization: National Snow and Ice Data Center

Contact Address:

Address Type: mailing
Address:
  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado
City: Boulder
State or Province: CO
Postal Code: 80309-0449
Country: USA

Contact Voice Telephone: 1 303 492-6199
Contact Facsimile Telephone: 1 303 492-2468
Contact Electronic Mail Address: nsidc@nsidc.org

Metadata Standard Name:

FGDC Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata

Metadata Standard Version:

FGDC-STD-012-2002

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Metadata Views

FGDC Text-Only

Federal Geographic Data Committee (FGDC) in plain text

FGDC XML

Federal Geographic Data Committee (FGDC) in Extensible Markup Language (XML)

DIF HTML

NASA Global Change Master Directory (GCMD) Directory Interchange Format (DIF)

ISO HTML

International Organization for Standardization (ISO) 19115:2003 Geographic Information Metadata